Concerned by the political implications of his current murder case, Adam Dalgliesh travels to a teaching hospital to interview a prime suspect. He soon discovers that the hospital is a hotbed of blackmail teeming with mysterious motives. The nurses' residence is even more malicious, as two young nurses are suddenly poisoned to death—one of them right before Dalgliesh's eyes. Without informing his superiors, Dalgiesh attempts to solve the case, navigating a labyrinth of intrigue, jealousies, and some very dark secrets. Produced for the PBS series Mystery! these multi-part dramas were originally penned by MWA Grand Master P.D. James and star the superbly cast Roy Marsden as Chief Superintendent (and later Commander) Adam Dalgliesh of Scotland Yard; Marsden's subtle but clear characterization breathes life into James's enigmatic poetry-writing detective.